The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1982
Filed:
Nov. 26, 1980
Charles R Wilke, El Cerrito, CA (US);
Brian L Maiorella, Berkeley, CA (US);
Harvey W Blanch, Berkeley, CA (US);
Gerald R Cysewski, Kennewick, WA (US);
The United States of America as represented by the Department of Energy, Washington, DC (US);
Abstract
An improved fermentation process for producing alcohol which includes the combination of vacuum fermentation and vacuum distillation. Preferably, the vacuum distillation is carried out in two phases, one a fermentor proper operated at atmospheric pressure and a flash phase operated at reduced pressure with recycle of fermentation brew having a reduced alcohol content to the fermentor, using vapor recompression heating of the flash-pot recycle stream to heat the flash-pot or the distillation step, and using 'water load balancing' (i.e., the molar ratio of water in the fermentor feed is the same as the molar ratio of water in the distillation overhead).